Liquid-fuel burner



March 17, 1925.

S. P. THOMAS LIQUID FUEL BURNER Filed Feb. 21; 1924 2 sheets-sheet 1 March 17, 1925.

s. P. THOMAS LIQUID FUEL BURNER 2 Sheets-Sheet 2 Filed Feb. 21, 1924 Patented Mar. 17, 1925.

UNITED STATES STANLEY l?. THOMAS, OF LOS BANDSV CALIFORNIA.

LIQUID FUEL BURNER.

Application filed February 21, 1924. Serial No. 694,350.

To all whom it may concer/zi.'

Be it known that l, S'.".xNLi-:Y P. Tnonixs. a citizen of the l/lnited States, residing at Los Bancs, in the county of Merced and State of California. have invented certain new and useful improvements in Liquid- Fuel Burners. of which the following is a specification.

This invention relates to improvements in liquid fuel burners and has as its object to provide a liquid fuel burner which will bc simple in construction. not liable to become clogged, and highly efficient in operation.

Another object of the invention is to pros vide, in a liquid fuel burner, a novel construction of generating` chamber in which the liquid fuel may be completely yaporized before reaching` the burner nozzle, thereby insuring of economy in the consumption of fuel.

The invention also has an object to pro-- Vide, in a liquid fuel burner, a novel form of nozzle which will be interiorly of such contour as to permit of its being thoroughly cleaned if occasion should require.

In the accompanying drawings:

Figure l is a Vertical sectional view through a liquid fuel burner constructed in accordance with the present invention:

Figure 2 is a top plan View of the burner;

Figure 3 is a horizontal sectional View taken substantially on the line 3-3 of Figo ure l lookin; in the direction indicated by the arrows.

The burner embodying the present inrenn tion comprises a generating chamber which is indicated in general by the numeral lY and which embodies a base 2 adapted to be mounted within the fire box of a furnace. stove. or other heating apparatus, in any of the customary manners.

vThe (generating chamber' further includes an upstanding wall 3 which is preferably of cylindrical form as shown in VFigure 3 of the drawings and which is integral with the said base. The upper portion of the wall I is inclined inwardly, as at 4, and is of substaw tally truste-conical form` and integral with this portion of the wall 3 is the top of the generating chamber which is indicated by the numeral 5. The said top of the generab in r chamber is of concave-convex form as best illustrated in Figure 1 so that its concave upper side constitutes a fuel pan which is indicated by the numeral 6.

Interorly the generating chamber t is formed with a partition wall T which eX- tends chordally across the interior of the j\.liiuliical casing and is integral with the bottoni 2 and wall thereof` the upper edc-'c ol' the said partition wall terminatingr relatively close to the under side oi' the pan (3. Preferably the wall 3 of the generating' chamber 1, at diamctrically opposite sides, is of increased thickness so that the inner surface of the wall at these two points is dat, these thickened portions being indicated one by the numeral 8 and the other by the numeral 9. The partition wall 7 is located in a Vertical plane parallel to the tace, oll the thickened portion 9, and relatively rlose thereto. Formed integral with the partition vall i' and with the bottoni 2 of the genera?- ingV chamber, is a baffle indicated in general by the numeral l0. rllhe said battle coniprisf-I a top Wall ll which is Hat and substantially' horizontally disposed, arcuate side walls l2 which extend between thc said top il and the bottom 2, and a 'front wall 152 which eX- tends between the arcuate side walls l2 and is located substantially in a planel parallel to the face of the thickened portion 5l of the wall of the chamber.

The walls l2 and l of the baille are cast integral with the bottom of the generating' chamber and are likewise integral with the top wall il. The side walls l2 of the said battle are concentric to and spaced inwardly from the relatiyeiy :nl iacent sides of the wall il of the chamber and are intciffral with lhe said partition wall T ly reference lo Figure l of the drawings it will be observed that the top wall ll of the baflie is located in a plane below the upper edge of the parli tion wall 7 and immediately below theltop 5 of the generating chamber. The numeral 14 indicates a liquid fuel supply pipe which leads from any suitable source of supply by gravity or under pressure. and is threaded into an opening l5 formed in the thickened portion 9 of the wall f, the discharge end of the pipe communicating with the interior of the generating ch amber at a point directly opposite the wall 13 of the baffle l0.

The numeral i6 indicates a fuel conducting: pipe which is of substantially U-shape and has one end threaded into an opening,r 17 formed in the thickened portion 8 of the wall of the `generating chamber, the pipe curving upwardly and thence inwardly so that' its other end is positioned substantially aber@ the pan 6.

., ,Maglia The nozzle of the hurner is iudieated in general bythe numeral il) and the si aie. more prises a hollow suhstamially spherical head 2O provided with a tuhular extension il at one side whirh threaded or otherwise tit/ted tothe upper end ot the turl roudurting pipe lo. le perforation 22 is t'ormed in the under side ot the head 2l) and is loeated pre terahlv directlvv in vertiral aliuemeut with the `renter of the pan t3.

ln the Operation ot' the hurner. n small quantity ot tnel is poured into the pau and ignited. and the heat generated hy the huruing 'fuel will he ahsorhed lrv the pan and the Halls ot the gieneiwiting rhauher so that when 'fuel is admitted to the rhamher thron; {h the pipe li., it will he vaporized and. sweeping over the hallie lt) and the upstandA ing partition or hatile 'all T. will. in the form ot gas, pass out through the pipe 1li and to the nozzle if? and through the pertoration f2.2 thereof. the tuel heilig ignited a ud the. llames heing delivered in the i'lireetiou ot' the pan (i. Alt will he evident that as the hurner eon tinues in operation. the walls ot the gen*- erating rhamher as well as the walls ot the hatlle lll. will heroine highlyv heated so that the fuel will he vaporized suhstantiallv at the instant it enters the generating ehamher. the generated gases heine likewise suhieeted to au elevated temperature so that the)v arey in a highl \Y heated state when the).v issue through the aperture M Ylt will likewise he evident that the pan serves not only to contain the ipumtitiv ot fuel neressar)7 to start the hurner. hut. in the operation ot the hurner. it constitutesl a tlame spreader. so that the tiames trom the hurning t'uel are spread in all direetious trom the hurner.

lt will he, observed that the walls T. lL l2 and l?) eonstitvuting the hallie l0 are ot suhstantiallv uniform tlsieliuess and that thev enrlose a spare lll in the lower portion ol" the hurner an opening ll heiug formed through the hase fl ot' the hurner and rommunieating with the said hase. This eonstruetion is oin advantage inasulueh as due to the free eireulation oi air whirh ma'v talie place in the space l0 and likewise due to the suhstantialliY unitiorni thiehness of the walls ot' the hattle. expansion and contraction will tale plat-e unitornihY and likewise the hatlle walls will he more readily heated to the required degree oltemperature than it the hatlle were t'ormed solid throughout.

Having thus d esrrihed the invention. what elaimed as new is:

l. A liquid Yfuel hurner comprising a geuerating chamber having a top` the upper side otl whieh is eiirviliuearljiv eoneave. to provide a pan to initialhv reeeive tuel and to serve later as a llame spreader. an upstanding hatiie within the said ehainloer`r means tor supplying liquid fuel to the chan1- loer at one side ot the loattlev` means for Condurtiug gaseous i'uel irom the rhainher ai the opposite side otl the hallie, and a nozzle in eommunieat ion with the said roiuhuting means and having a disrharge orilire presented toward the said top ot the rhamher.

liiptial tuel hurner rompriJiuga gefr erating rhauiher haring a top, the upper side ot which is eurvilinearl)Y eoneave. an upstauding hatiie within the rhan'iher. means tor supplving liquid 'fuel to the said rhain her at one .side oi` the hatlle. a pipe in comn muniration with the rhamher at the other side ol the hallle ''or eondurting gaseous 'rel Ytroni the ehauiher. the said pipe extending iunvardl)Y and thenee inwardlv to a point ahove the Iliamlier. and a nozzle snpported upon the upper end ot the pipe. the nozzle heing provided in its under side with an oritiee and the said under side ot the nozzle heing presented toward the eoneave top ot the eliainloer.

il. A liquid tuel lnirner comprising a generating ehamher having a top` a hollow hallle within the eliamher upon the hottom thereof having a wall 1 n'esented toward one side ot the eliamher. a partition wall eonstituting likewise a hatlle and elosing one side ot the said hollow hallle and presented toward the opposite side ot the wall ot the rhaniher. means tor ii'itroilneing liquid tuel into the said eliainher through the lirst mentioned side ot the wall thereoie and against the hollow hallle. means tor eondueting gaseous tuel trom the eliamher at the other side ol the wall thereot and at a point opposite the said partition wall. and a nozzle supplied with gaseous tuel from the said Conducting means and having a discharge oritiee presented toward the said top ot the said Chainher.

l. )t liquid vtuel hurner Comprising a generating rhan'iher having a top a hollow hallle within the ehamher upon the hottom thei'eo!I and having a wall presented toward one side ot the eliamher. a partition 'all constituting likewise a hallli and elosing one side ot the said hollow hatlle and presented toward the opposite side of the wall ot the rhamher. means tor introdueing liquid fuel into the said ehalnher through the first mentioned side of the wall thereof and against the hollow hatile. means tor rondueting gaseous tuel from the eliamher at the other side ot the wall thereof and at a pointr opposite the said partition wall. and a nozzle supplied with gaseous fuel 'from the said eondueting means and having a disrharge oritiee presented toward the said top ot the said chamber. the said partition wall having its upper portion extending above the top ot the hatlle and terminating short, ot the under side ot the top ot the chamber.

il. liquid tuel hurner Comprising a generating chamber having a top. the upper side of which is curvilinearly concave, the

reeeee Said Chamber likewise haring a bottoni and a surrounding cirtiunfcrential wall` an up yStandingy baille wall within the chamber cxtcnding; from the bottom thereof to a point spaced below the said top of the chamber.

a fuel outlet conducting' pipe extending from the chamber and comnmnlcating therewith at a point opposite said n'ally a nozzle at the other end of the Said conducting); pipe having` a discharge orifice pref-cnted toward the upper side of the Said top ot the chamber, and a hollow balllc comprieing a top wall and a circumferential Wall, the circumferential wall upstanding from the bottom of the Said chamber and the top Wall of the baille and the end of the bi1ruinferentinl Wall thereof meeting the face of the tiret mentioned bnllle wall, the tiret mentioned baille wall having;V its upper portion extending,r above the plane of the top wall of the hollow baille. the said hollow baille being exteriorly of a diameter less than the internal diameter of the chambei.' whereinv its outer Side Will be spaced therefrom throughout its circumference, and a fuel inlet pipe opening into the said chamber at :i point opposite the intermediate portion of the circumferential Wall of the hollow baille.

ln testimony whereof I atlix my Signature.

STANLEY P. THOMAS. [L 8.] 

